|This article is about Alterra Bases. You may be looking for Independent Bases or Architect Bases.|
Alterra Bases are Seabases utilized by the Sector Zero division of Alterra. They are set up in various points of interest in order to study the environment, as well as any Architect activity in the area.
|Delta Station||A base located on Delta Island dedicated to maintenance of the Communications Tower.||deltabase|
|Omega Lab||A research base in the Lilypad Islands.||outpostomega|
|Outpost Zero||A large research base focused on studying The Architects.||outpostzero|
|Parvan's Bunker||A bunker located in the Glacial Basin made by Parvan.||glacialbasinbunker|
|Phi Excavation Site||Excavation site located in the Glacial Basin.||frozencreature
|Phi Robotics Center||Robotics lab located in the Glacial Basin.||hoverbikebase|